Pain relief by movement representation strategies: An umbrella and mapping review with meta-meta-analysis of motor imagery, action observation and mirror therapy.

Objective: To develop a mapping and umbrella review with a meta-meta-analysis (MMA) to critically evaluate the current evidence of motor imagery (MI), action observation and mirror therapy (MT) on pain intensity.

Methods: The study involved a systematic search of PubMed, PEDro, Scielo, EBSCO and Google Scholar.

Results: Ten systematic reviews were included in the qualitative synthesis, 70% of which showed high methodological quality.